Pump shaft stripping tool

Abstract

The utility model provides a pump shaft stripping tool which comprises a bottom plate (1), a clamping hole (2) is formed in the bottom plate (1), and the hole (2) is used for being arranged on a pump shaft in a sleeved mode. The two sides of the interior of the clamping hole (2) are provided with hoeing mechanisms used for clamping the pump shaft from the two sides for hoeing, and the surface, making contact with the pump shaft, of the arc-shaped clamping plate (205) is fixedly provided with an air bag layer (203) used for making contact with the surface of the pump shaft; a cavity (3) is formed in the bottom plate (1), and an electric heating tube (301) is arranged in the cavity (3). The technical problem that a bottom plate of a traditional pump shaft hoeing tool needs to be moved and is not very convenient is solved. And meanwhile, the technical problem of heating the pump shaft is solved.

Description

Technical Field

[0001] The utility model relates to a stripping and installing tool, in particular to a pump shaft stripping and installing tool. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] There are many liquid pumps in metallurgical and petrochemical enterprises, and most of them are imported equipment. The structure is mostly that the pump shaft is sleeved on the motor shaft, keyed, and the pump shaft and the motor shaft are mostly interference fit or clearance fit. Liquid pumps and motors need to be disassembled and repaired regularly. During the inspection, the pump shaft must be stripped from the motor shaft. If the stripping is improper, it is very easy to damage the pump shaft and motor shaft, which not only increases the maintenance cost, but also prolongs the maintenance time.

[0004] According to the technical solution of a pump shaft stripping tool in the published patent document CN204413973U, the tool includes a bottom plate, a crossbeam, bolts, nuts, and a 5t small manual jack; the bottom plate is below the pump shaft, the crossbeam is above the pump shaft, the bottom plate and the crossbeam are connected together by bolts and nuts, and there are two 5t small manual jacks, on both sides of the crossbeam beyond the bottom plate. The advantages are: extending the service life of the pump shaft and the motor shaft, saving a lot of costs; small investment, and significant effect, worthy of promotion. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved: although the use of this stripping tool for maintenance can reduce the workload, it is not easy to damage the pump shaft and the motor shaft, that is, shorten the maintenance time, greatly save the maintenance fee, and the investment is small and easy to use.

[0005] However, in the process of use, the large hole of the traditional pump shaft stripping tool is set on the surface of the pump shaft, and the bottom plate needs to be moved before the pump shaft can be clamped, which requires the staff to move the bottom plate, which is not very convenient. In addition, before adjusting the jack, the pump shaft needs to be heated, which requires the staff to use additional heating equipment for heating. For this reason, a new technical solution needs to be designed to solve the problem.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] Purpose of the invention: The technical problem to be solved by the utility model is to provide a pump shaft stripping tool in view of the deficiencies in the prior art.

[0008] In order to solve the above technical problems, the utility model discloses a pump shaft stripping tool, comprising:

[0009] A bottom plate, wherein the bottom plate is provided with a clamping hole for being sleeved on the pump shaft;

[0010] Both sides of the clamping hole are provided with a mounting mechanism for clamping the pump shaft from both sides for mounting;

[0011] A reserved gap is provided in the mounting mechanism, and the pump shaft passes through the reserved gap.

[0012] Furthermore, the mounting mechanism comprises:

[0013] The elastic components are arranged on both sides of the clamping hole, one end of the elastic component is fixed inside the clamping hole, and the other end is fixed with an arc clamping plate for clamping the pump shaft from both sides.

[0014] Furthermore, the elastic component includes:

[0015] Two circular grooves are respectively opened on both sides of the clamping hole, and a first fixed cylinder is arranged inside the circular groove. The first fixed cylinder is a hollow cylindrical structure, and a second fixed cylinder is slidably arranged inside the first fixed cylinder. A spring is fixed at one end of the second fixed cylinder, and the other end of the spring is fixed in the first fixed cylinder; one end of the second fixed cylinder away from the spring exceeds the first fixed cylinder and is fixedly connected to the arc clamping plate.

[0016] Furthermore, an air bag layer is fixedly provided on the surface of the arc-shaped clamping plate that contacts the pump shaft, so as to contact the surface of the pump shaft.

[0017] Furthermore, a spherical airbag is provided on the surface of the airbag layer, and the spherical airbag is connected to the hollow part inside the airbag layer.

[0018] Furthermore, a groove body is provided on the arc-shaped card plate, a micro air pump is provided inside the groove body, a connecting pipe is provided at the air outlet of the micro air pump, and the other end of the connecting pipe is connected to the airbag layer.

[0019] Furthermore, a cavity is provided inside the bottom plate, and an electric heating tube is provided inside the cavity.

[0020] Furthermore, mounting holes are provided at the four corners of the bottom plate.

[0021] Furthermore, the reserved gap in the mounting mechanism is larger than the maximum diameter of the pump shaft.

[0022] Beneficial effects:

[0023] 1. The utility model combines a fixed cylinder, an arc-shaped clamping plate and an air bag layer. After the pump shaft passes through the clamping hole, the elastic force of the spring in the first fixed cylinder will drive the arc-shaped clamping plate to clamp and tighten the two sides of the pump shaft. Moreover, in order to fill the gap between the arc-shaped clamping plate and the pump shaft, the air bag layer and the spherical air bag can be filled between the arc-shaped clamping plate and the pump shaft through a micro air pump, so as to fill the gap between the arc-shaped clamping plate and the pump shaft, clamp the pump shaft more stably, clamp the pump shaft directly, and do not need to move the position of the bottom plate. This solves the problem of traditional pump shaft stripping tools, in which the large hole is sleeved on the surface of the pump shaft and the bottom plate needs to be moved to clamp the pump shaft, resulting in the staff also needing to move the bottom plate, which is not a very convenient technical problem.

[0024] 2. The utility model provides cavities and electric heating tubes inside the bottom plate through the combination of cavities and electric heating tubes, directly combines the stripping tool with the heating mechanism, and can generate heat around the bottom plate by using the electric heating tubes before adjusting the jack, thereby directly heating the pump shaft, thereby solving the technical problem that the pump shaft needs to be heated before adjusting the jack, which causes the staff to need to use additional heating equipment for heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, and the above and / or other advantages of the present invention will become more clear.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the fixed cylinder and cavity structure of the utility model.

[0028] Figure 3 This is a schematic diagram of the arc-shaped pallet structure of the utility model.

[0029] Figure 4 This is a schematic diagram of the reserved gap structure of the utility model.

[0030] In the figure: 1, bottom plate; 101, mounting hole; 2, clamping hole; 201, circular groove; 202, spring; 203, airbag layer; 204, second fixed cylinder; 205, arc-shaped clamping plate; 206, slot body; 207, micro air pump; 208, connecting pipe; 209, spherical airbag; 210, first fixed cylinder; 3, cavity; 301, electric heating tube; 4, reserved gap. DETAILED DESCRIPTION

[0031] The utility model provides a pump shaft stripping tool to solve the technical problems of the current traditional pump shaft stripping tools, namely: the large hole is sleeved on the surface of the pump shaft, and the bottom plate needs to be moved before the pump shaft can be clamped, which requires the staff to move the bottom plate, which is not very convenient; and before adjusting the jack, the pump shaft needs to be heated, which requires the staff to use additional heating equipment for heating.

[0032] The technical solution adopted by the utility model is:

[0033] A pump shaft stripping tool comprises a bottom plate 1, and also comprises: a clamping hole 2, which is opened at the front end of the bottom plate 1; a stripping mechanism, which is opened at both sides of the inside of the clamping hole 2;

[0034] like Figure 4 As shown, a reserved gap 4 is provided in the mounting mechanism for the pump shaft to pass through.

[0035] The mounting mechanism comprises two circular grooves 201, which are respectively provided at two sides of the clamping hole 2, a first fixing cylinder 210 is installed inside the circular grooves 201, a second fixing cylinder 204 penetrates one side of the first fixing cylinder 210, a spring 202 is fixed to one end of the second fixing cylinder 204 located inside the first fixing cylinder 210, and the first fixing cylinder 210 is fixed to the other end of the spring 202;

[0036] An arc-shaped clamping plate 205 is fixed to one end of the second fixing tube 204 away from the spring 202 .

[0037] An airbag layer 203 is fixed on the surface of the arc-shaped clamping plate 205 , and a plurality of spherical airbags 209 are integrally formed on the surface of the airbag layer 203 .

[0038] A groove body 206 is formed at both upper and lower ends of one side of the arc-shaped card plate 205 , a micro air pump 207 is installed inside the groove body 206 , one side of the micro air pump 207 is connected to a connecting pipe 208 , and the other end of the connecting pipe 208 passes through the arc-shaped card plate 205 and is connected to the airbag layer 203 .

[0039] The bottom plate 1 has cavities 3 at both upper and lower ends, and electric heating pipes 301 are installed in the cavities 3 .

[0040] The four corners of the front end of the bottom plate 1 are provided with mounting holes 101 .

[0041] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0042] Embodiment 1: A pump shaft stripping tool, such as Figure 1 As shown, it includes a bottom plate 1, and also includes: a clamping hole 2, which is opened at the front end of the bottom plate 1; and a mounting mechanism, which is opened at both sides of the inside of the clamping hole 2;

[0043] like Figure 2 As shown, the mounting mechanism includes two circular grooves 201, which are respectively arranged on both sides of the clamping hole 2, a first fixed cylinder 210 is installed inside the circular groove 201, a second fixed cylinder 204 is passed through one side of the first fixed cylinder 210, a spring 202 is fixed to one end of the second fixed cylinder 204 located in the first fixed cylinder 210, and the first fixed cylinder 210 is fixed to the other end of the spring 202; an arc-shaped clamping plate 205 is fixed to one end of the second fixed cylinder 204 away from the spring 202, and the pump shaft is first clamped into the clamping hole 2 on the surface of the bottom plate 1. Since the spring 202 is arranged in the first fixed cylinder 210, the elastic force of the spring 202 drives the second fixed cylinder 204 and the arc-shaped clamping plate 205 to move, and the arc-shaped clamping plate 205 clamps and clamps the two sides of the pump shaft;

[0044] like Figure 3 As shown, in order to fill the gap between the arc-shaped clamping plate 205 and the pump shaft, the micro air pump 207 can be opened to allow the airbag layer 203 and the spherical airbag 209 to expand rapidly and fill the space between the arc-shaped clamping plate 205 and the pump shaft. This can fill the gap between the arc-shaped clamping plate 205 and the pump shaft, and more stably clamp the pump shaft. The pump shaft can be directly clamped without moving the position of the bottom plate 1, which solves the problem of traditional pump shaft mounting tools, in which the large hole is sleeved on the surface of the pump shaft and the bottom plate 1 needs to be moved in order to clamp the pump shaft, resulting in the staff also needing to move the bottom plate 1, which is not a very convenient technical problem.

[0045] For details, see Figure 3 An airbag layer 203 is fixed on the surface of the arc-shaped clamping plate 205 , and a plurality of spherical airbags 209 are integrally formed on the surface of the airbag layer 203 .

[0046] For further information, see Figure 3 A groove body 206 is provided at both upper and lower ends of one side of the arc-shaped card plate 205, and a micro air pump 207 is installed inside the groove body 206. One side of the micro air pump 207 is connected to a connecting pipe 208, and the other end of the connecting pipe 208 passes through the arc-shaped card plate 205 and is connected to the airbag layer 203.

[0047] It is worth noting that see Figure 2 A cavity 3 is provided at both the upper and lower ends of the bottom plate 1, and an electric heating pipe 301 is installed inside the cavity 3. The cavity 3 and the electric heating pipe 301 are provided inside the bottom plate 1. Before adjusting the jack, the electric heating pipe 301 can be turned on to generate heat around the bottom plate 1, thereby directly heating the pump shaft. This solves the technical problem that the pump shaft needs to be heated before adjusting the jack, which requires the staff to use additional heating equipment for heating.

[0048] It is worth noting that see Figure 1The four corners of the front end of the bottom plate 1 are all provided with mounting holes 101 .

[0049] When using a pump shaft stripping tool, first insert the pump shaft into the clamping hole 2 on the surface of the base plate 1. Since a spring 202 is arranged in the first fixed cylinder 210, the elastic force of the spring 202 drives the second fixed cylinder 204 and the arc clamping plate 205 to move. The arc clamping plate 205 will clamp and tighten the two sides of the pump shaft. Moreover, in order to fill the gap between the arc clamping plate 205 and the pump shaft, the micro air pump 207 can be opened to make the air bag layer 203 and the spherical air bag 209 expand rapidly, filling the gap between the arc clamping plate 205 and the pump shaft, and being able to fill the gap between the arc clamping plate 205 and the pump shaft, clamping the pump shaft more stably, and clamping the pump shaft directly without moving the position of the base plate 1. A cavity 3 and an electric heating pipe 301 are arranged inside the base plate 1. Before adjusting the jack, the electric heating pipe 301 can be turned on to generate heat around the base plate 1, thereby directly heating the pump shaft.

[0050] like Figure 4 As shown, in order to allow the pump shaft to smoothly pass through the stripping tool, the stripping tool is put on the pump shaft to perform the stripping operation. The width a and height h of the reserved gap 4 need to be larger than the maximum diameter of the pump shaft.

[0051] The utility model provides a pump shaft stripping tool idea and method, and there are many methods and ways to implement the technical solution. The above is only the preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A pump shaft stripping tool, characterized in that: include: A bottom plate (1), the bottom plate (1) being provided with a clamping hole (2) for being sleeved on the pump shaft; Both sides of the clamping hole (2) are provided with mounting mechanisms for clamping the pump shaft from both sides for mounting; A reserved gap (4) is provided in the mounting mechanism, and the pump shaft passes through the gap; Elastic components are arranged on both sides of the clamping hole (2), one end of the elastic component is fixed inside the clamping hole (2), and the other end is fixed with an arc-shaped clamping plate (205) for clamping the pump shaft from both sides.

2. A pump shaft stripping tool according to claim 1, characterized in that: The elastic component comprises: Two circular grooves (201) are respectively provided on both sides of the clamping hole (2), and a first fixed cylinder (210) is provided inside the circular groove (201). The first fixed cylinder (210) is a hollow cylindrical structure, and a second fixed cylinder (204) is slidably provided inside the first fixed cylinder (210). A spring (202) is fixedly provided at one end of the second fixed cylinder (204), and the other end of the spring (202) is fixedly provided in the first fixed cylinder (210); one end of the second fixed cylinder (204) away from the spring (202) exceeds the first fixed cylinder (210) and is fixedly connected to the arc clamping plate (205).

3. A pump shaft stripping tool according to claim 1, characterized in that: An air bag layer (203) is fixedly provided on the surface of the arc-shaped clamping plate (205) that contacts the pump shaft, and is used to contact the surface of the pump shaft.

4. A pump shaft stripping tool according to claim 3, characterized in that: A spherical airbag (209) is provided on the surface of the airbag layer (203).

5. A pump shaft stripping tool according to claim 4, characterized in that: The spherical airbag (209) is connected to the hollow portion inside the airbag layer (203).

6. A pump shaft stripping tool according to claim 5, characterized in that: The arc-shaped clamping plate (205) is provided with a groove body (206), a micro air pump (207) is provided inside the groove body (206), a connecting pipe (208) is provided at the air outlet of the micro air pump (207), and the other end of the connecting pipe (208) is connected to the airbag layer (203).

7. A pump shaft stripping tool according to claim 1, characterized in that: A cavity (3) is provided inside the bottom plate (1), and an electric heating pipe (301) is provided inside the cavity (3).

8. A pump shaft stripping tool according to claim 1, characterized in that: The bottom plate (1) is provided with mounting holes (101) at the four corners.

9. A pump shaft stripping tool according to claim 1, characterized in that: The reserved gap (4) in the mounting mechanism is larger than the maximum diameter of the pump shaft.

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